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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
10/09/2021 |
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Data da última atualização: |
27/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, P. S. A. de; CERQUEIRA, A. A.; RIGO, M. M.; PAIVA, J. L. de; COUTO, R. S. P.; MERÇON, F.; PEREZ, D. V.; MARQUES, M. R. C. |
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Afiliação: |
PAULO S. A. DE SOUZA, UERJ; ALEXANDRE A. CERQUEIRA, UERJ; MICHELLE M. RIGO, UERJ; JULIETA L. DE PAIVA, UERJ; RAFAEL S. P. COUTO, UERJ; FÁBIO MERÇON, UERJ; DANIEL VIDAL PEREZ, CNPS; MONICA R. C. MARQUES, UERJ. |
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Título: |
Oilfield water treatment by electrocoagulation-reverse osmosis for agricultural use: effects on germination and early growth characteristics of sunflower. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Environmental Technology, v. 38, n. 9, p. 1151-1159, 2017. |
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DOI: |
https://doi.org/10.1080/09593330.2016.1218941 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-RO reduces sodium levels into acceptable standards values avoiding soil degradation. MenosThis study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-... Mostrar Tudo |
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Palavras-Chave: |
Electrocoagulation; Oilfield water. |
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Thesaurus Nal: |
Irrigation; Reverse osmosis; Sunflower seed. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02486naa a2200277 a 4500
001 2134221
005 2021-09-27
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/09593330.2016.1218941$2DOI
100 1 $aSOUZA, P. S. A. de
245 $aOilfield water treatment by electrocoagulation-reverse osmosis for agricultural use$beffects on germination and early growth characteristics of sunflower.$h[electronic resource]
260 $c2017
520 $aThis study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-RO reduces sodium levels into acceptable standards values avoiding soil degradation.
650 $aIrrigation
650 $aReverse osmosis
650 $aSunflower seed
653 $aElectrocoagulation
653 $aOilfield water
700 1 $aCERQUEIRA, A. A.
700 1 $aRIGO, M. M.
700 1 $aPAIVA, J. L. de
700 1 $aCOUTO, R. S. P.
700 1 $aMERÇON, F.
700 1 $aPEREZ, D. V.
700 1 $aMARQUES, M. R. C.
773 $tEnvironmental Technology$gv. 38, n. 9, p. 1151-1159, 2017.
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Embrapa Solos (CNPS) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
12/11/2020 |
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Data da última atualização: |
21/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SILVEIRA, S. S.; SANT'ANNA-SANTOS, B. F.; DEGENHARDT, J.; QUOIRIN, M. |
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Afiliação: |
Sheila Susy Silveira, UFPR; Bruno Francisco Sant'Anna-Santos, UFPR; JULIANA DEGENHARDT, CNPF; Marguerite Quoirin, UFPR. |
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Título: |
Somatic embryogenesis from mature split seeds of jaboticaba (Plinia peruviana (Poir) Govaerts). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 42, e43798, 2020 11 p. |
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DOI: |
10.4025/actasciagron.v42i1.43798 |
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Idioma: |
Inglês |
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Conteúdo: |
Plinia peruviana is a species that is native to Brazil and is important due to the taste and medicinal properties of its fruits. Young leaves and split mature seeds were used as explants to initiate somatic embryogenesis to obtain a large number of plants in a short period of time. Leaf discs were cultured in MS medium containing various concentrations of 2,4-D (2,4-dichlorophenoxyacetic acid) or picloram (4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid). In the case of the mature seeds, various concentrations of glutamine, 2,4-D and a combination of auxin and BAP (6-benzylaminopurine) were tested for somatic embryogenesis induction. For somatic embryo maturation, several concentrations of PEG 6000 (polyethylene glycol; up to 90 g L-1) were tested. After 60 days of culture using leaf discs, callus formation occurred in all treatments, with the highest averages obtained with 10 μM 2,4-D. However, these calluses did not form somatic embryos. For the cultured seeds, the best treatment was the MS medium with 1,000 mg L-1 glutamine and 10 μM 2,4-D without BAP. The supplementation of 60 g L-1 PEG 6000 was sufficient to promote the maturation of the somatic embryos. Histological analyses of the calluses that were formed from leaf discs showed nonembryogenic characteristics. In contrast, the calluses that originated from mature seeds had small and round cells with little vacuolation, which are characteristics of embryogenic structures. |
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Palavras-Chave: |
Análise histológica; Dichlorophenoxyacetic acid; Discos foliares; Histological analysis; Leaf discs; Massa pró-embriogênica; Mature seeds; Plinia peruviana; Proembryogenic masses; Semente madura. |
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Thesagro: |
Jabuticaba. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02390naa a2200301 a 4500
001 2126530
005 2021-12-21
008 2020 bl uuuu u00u1 u #d
024 7 $a10.4025/actasciagron.v42i1.43798$2DOI
100 1 $aSILVEIRA, S. S.
245 $aSomatic embryogenesis from mature split seeds of jaboticaba (Plinia peruviana (Poir) Govaerts).$h[electronic resource]
260 $c2020
520 $aPlinia peruviana is a species that is native to Brazil and is important due to the taste and medicinal properties of its fruits. Young leaves and split mature seeds were used as explants to initiate somatic embryogenesis to obtain a large number of plants in a short period of time. Leaf discs were cultured in MS medium containing various concentrations of 2,4-D (2,4-dichlorophenoxyacetic acid) or picloram (4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid). In the case of the mature seeds, various concentrations of glutamine, 2,4-D and a combination of auxin and BAP (6-benzylaminopurine) were tested for somatic embryogenesis induction. For somatic embryo maturation, several concentrations of PEG 6000 (polyethylene glycol; up to 90 g L-1) were tested. After 60 days of culture using leaf discs, callus formation occurred in all treatments, with the highest averages obtained with 10 μM 2,4-D. However, these calluses did not form somatic embryos. For the cultured seeds, the best treatment was the MS medium with 1,000 mg L-1 glutamine and 10 μM 2,4-D without BAP. The supplementation of 60 g L-1 PEG 6000 was sufficient to promote the maturation of the somatic embryos. Histological analyses of the calluses that were formed from leaf discs showed nonembryogenic characteristics. In contrast, the calluses that originated from mature seeds had small and round cells with little vacuolation, which are characteristics of embryogenic structures.
650 $aJabuticaba
653 $aAnálise histológica
653 $aDichlorophenoxyacetic acid
653 $aDiscos foliares
653 $aHistological analysis
653 $aLeaf discs
653 $aMassa pró-embriogênica
653 $aMature seeds
653 $aPlinia peruviana
653 $aProembryogenic masses
653 $aSemente madura
700 1 $aSANT'ANNA-SANTOS, B. F.
700 1 $aDEGENHARDT, J.
700 1 $aQUOIRIN, M.
773 $tActa Scientiarum. Agronomy$gv. 42, e43798, 2020 11 p.
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